Shaft-coupling.



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WITNESBESZ A CRPORATIGN OF CONNJFCTXCJUT.

Specification of ietters Patent.

SHfsFT-CUPLNG.

Patented eine.; 9., illlll.

Application iled Eieren l2, i910. Serel Nef.

To all who-m, it moy webcam:

Be it known that l, Homer lli. loonivnnn, ecitizen of the United States,residing et Bristol, county of Hertford, State of' Corn necticut, lieveinvented :i certain newr and useful Shaft-Coupling, of which the following is e full, cle-er, and exact description, suoli es will enableothers skilled in the-art to which itepperteins to ineke enel use tlieseme, reference being had to the :ieconipenying drawings, forming peri;of this speci ication..

My invention reletes to slniit couplings, my object being toproduce"econnling oi simple structure leaving positive drivingconnection between the coupling' members and yet possessing reetfreedonl of movement of seid members with respect to einen other. y

To this end, and also to improve generally upon devices of the characterinclicetelli, my invention consists in the various matters hereinafterdescribed and claimed.

In the accompanying drawings, Figure is e perspective View, partly' insection; Fig. 2 is e Ilongitudinal .sectional elevation on about theline ,L2-2 of 3; and Fig 3 'is e transverse sectional elevation on about'the line 3&3 of Fig. 2.

in the embodiment of my invention .illus-.- tinted in the aceoinpenyingdrawings A nini B indicate the shaft sections to connected, end 1 and 2indicate the respective coupiing members. Eeclioi said coupling membersis orlrc7 having e 'need from 'which 'the ngers o the forks extend9 thefingers upon the coupling member l lacing marked 4, enel those upon tliecoupling inen'ioer i), being marked The fingers or' enclin couplingmember ere dieinetriceliy opposite euch other end, when the parte ereassembled, ere engularly disposed with respect to 'the iin gers upon theother coupling member, so that the lingers oit one sitio member ere etabout right :ingles te these of the other seid member. The fingers ererelatively oroecl e* eccive liet/Ween there e central driving l/ocii 3which is rectangular in cross-section.

in tlie structure shown, the lingers ere of less Wifltli than Vare thefeces of the lolocl: which they engage. Furthermore., the iingere aredisconnected 'from the block, e1 ci.,

they lieve no pivots or the like coi'inectinr them te the block, so touteocl'i inger is freely movable with inspect to the lalocln When theparte are m-seinlalcil upon their sliei't sections, the distance betweenthe inner feces of the liceale i is loss than the length oi tlie biockll, es Fig. 2. "lliereform this coupling; presents great freedom oimovement. it being possible 'oi the s .ett sections to morelongitudinally tower-cl and away from each other, to sliii't in linestransverse ee-*cli other, und to rock with respect to enel). otliexxNeverthe less, the lolock forms e positive (l'ivingr connection between'the coupling members F'l end Preferably each iinger lies e pri'ijectingportion Z which extends iiey'onfl the block :incl overlaps the lieecloit tlie ether coupling; section. This prevents accidentel separation ofthe coupling members when the parts are assembled upon the sliefftsections, because transverse movement oit eeco coupling inembei' islimited by the :lect oil'ljits lieecl 2l coming into contact with theoverlegging pox tion of e inger of 'the other coupling inemlier.

ln the structure here shown the coupling member i connected to its shaftsection Si ey e threaded enti 8 upon the slieft scction recei ing at nut9, seirl tlniezuleal entl :zml nut exieiiflixlgg; into tlio spacebetween lille tinoi" the coupling nlcnil'ers. this event, the centr-ildriving block i3 man no previrled with e central o'leningg it to receivethe seid parte lanci is ilnstreted in lli'uniiestly, the present,coupling `is ineirl pensively mede enl easily assembled. Nevertheless,1giositive driving is insured oe-I tween the f :onplionggf members and,et the seine time, suoli coupling members neve greet frceelom ofmovement vith respect to eeclx other. `lllnrtnermore7 notwitnstending'the simplicity of the strnctnre, scciflei'ltel scpnretion of thecoupling incmliers by excessive sidevvise'movement is rendered infposnsible.

l. A sliet coupling comprisinfr e central eioclr, e :forlreai couplingmember having its upon opposite sides of seid block and disconnectedtherefrom with respect to lootio longitudinal end litter-:fil movementwhereby seid .fingers ere freely movel'ile longitudinally anni leterellywith Yrespect to seid liloclra anni seconci forked coupling; member clievito its ingers upon opposite sides of seid y block, a' forkedcouplln lngere upon opposite si 10 block and engularly disposed withrespect to said iret mentioned lngere, seid second mentioned fingersalso being disconnected from said block. with respect to bothlongitudinal and lateral movement; eubetantally described.

2. A shaft coupling comprising a. centraal member having its es elSadblock and movable laterally across the seme, and n Second forkedcoupling member having its lingers upon opposite sides of said blockand' angularly disposed with respect to said rstmentioned fingers, saidSecond mentioned fin gers also Vbeing movable laterally across Saidblock, the sind fingers upon each of said coupling members extendingvbeyond said block and overlapping the ling member; vsubstmntielly esdescribed.

3. A shaft coupling comprising e central they are freely movable block,and forked coupling members each havin-fg lingers upon opposite sidesofsaid block, the Engers upon one said coupling rnenibe'r beingsingularly disposed with re speel; to the other seid lingers, saidlingers' of each said coupling member being disconnected from said blockwith respect to both longitudinal and lateral movement, whereby'longitudinally and laterally with respect thereto, being of less Width.than said block, and extending beyond. said blockand overlapping theother said coupling member; substentlelly as deP scribed. f

ln 'testimony whereof, -l hereunto an my Signature, in the presence otwo Witnesses.

HUGH M. ROCKWELL. wWitnesses: l -v fGALEs l. Moeten,l vAmon E. BROWN.'

